Hmm....I don't know much about this vaccination stuff ... all I know is that Toby had 2 shots , booster shots I assume. The vet told us he had to get 2 shots then we gave him some deworming stuff that he had to eat. I guess thats it? They did mention the leukemia shot, but for the price, we didn't do it because he's an indoor cat and it seemed unncessary